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Which law of thermodynamics deals with the concept of entropy? A) Zeroth Law B) First Law C) Second Law D) Third Law Answer: C) Second Law What does the first law of thermodynamics state? A) Energy cannot be created nor destroyed. B) Entropy of an isolated system remains constant. C) Heat always flows from a hotter object to a colder one. D) Energy can be converted from one form to another. Answer: A) Energy cannot be created nor destroyed. Which type of process occurs at constant volume? A) Isothermal B) Isobaric C) Adiabatic D) Isochoric Answer: D) Isochoric What is the maximum efficiency possible for a heat engine working between two temperatures according to the Carnot cycle? A) 50% B) 100% C) It depends on the type of fuel used. D) Determined by the size of the engine. Answer: B) 100% Which law of thermodynamics introduces the concept of temperature? A) Zeroth Law B) First Law C) Second Law D) Third Law Answer: A) Zeroth Law In a closed system, what quantities remain constant duri...

  Thermodynamics is a branch of physics that deals with the study of energy, work, heat, and their relationship to properties of matter. It has several laws and principles that govern the behavior of energy and its transformation. Here's an overview: Laws of Thermodynamics : Zeroth Law of Thermodynamics: If two systems are each in thermal equilibrium with a third system, they are in thermal equilibrium with each other. This law introduces the concept of temperature and the transitive property of thermal equilibrium. First Law of Thermodynamics (Law of Energy Conservation): It states that energy cannot be created or destroyed in an isolated system. It can only be transformed from one form to another or transferred between systems as heat or work. The mathematical representation is often given as ΔU = Q - W, where ΔU is the change in internal energy, Q is heat added to the system, and W is work done by the system. Second Law of Thermodynamics : There are several formulations of th...

With the coming up of battery rickshaws in Delhi, the income of auto rickshaw drivers has been badly affected. To figure out whether it is true or not, you decided to do a survey amongst the auto rickshaw drivers of Delhi. Conducting a survey among auto rickshaw drivers in Delhi is a great way to assess the impact of battery rickshaws on their income. You can create a questionnaire with questions related to their income, the competition from battery rickshaws, and any changes they've observed in their business. This data can help you determine the extent of the impact and whether their income has indeed been affected.  With the coming up of battery rickshaws in Delhi, the income of auto rickshaw drivers has been badly affected. To figure out whether it is true or not, you decided to do a survey amongst the auto rickshaw drivers of Delhi. Conducting a survey among auto rickshaw drivers in Delhi is a valuable approach to understand the impact of battery rickshaws on their income. You...

# Tkinter imports import tkinter as tk from tkinter import ttk # For creating the filename from datetime import datetime # For file operations from pathlib import Path # For creating the CSV file import csv # Create a dict to hold our variables variables = dict() # Variable to store the number of records saved records_saved = 0 # Configure the root window root = tk.Tk() root.title('NSS Data Entry Application') root.columnconfigure(0, weight=1) # Application heading ttk.Label(  root,  text="NSS Data Entry Application",  font=("TkDefaultFont", 16) ).grid() #################### # Data Record Form # #################### # Build the data record form in a Frame # to keep geometry management simpler drf = ttk.Frame(root) drf.grid(padx=10, sticky=(tk.E + tk.W)) drf.columnconfigure(0, weight=1) ############################## # Record information Frame # ############################## r_info = ttk.LabelFrame(drf, text='Student Information') r_info.grid(sticky=...

 import tkinter as tk root=tk.Tk() root.title("Maximum and Minumum") root.geometry('640x480+300+300') root.resizable(False, False) title = tk.Label(  root,  text='ABC',  font=('Timesnewroman 18 bold'),  bg='green',  fg='#AB1' ) num1=tk.DoubleVar() num2=tk.DoubleVar() num3=tk.DoubleVar() num1_label = tk.Label(root, text='Number1: ') num1_inp = tk.Entry(root, textvariable=num1) num2_label = tk.Label(root, text='Number2: ') num2_inp = tk.Entry(root, textvariable=num2) num3_label = tk.Label(root, text='Number3: ') num3_inp = tk.Entry(root, textvariable=num3) max_btn = tk.Button(root, text=' max ') min_btn = tk.Button(root, text=' min ') output_var = tk.StringVar(value='') output_line = tk.Label(  root,  textvariable=output_var,  anchor='sw',  justify='center' ) title.grid() num1_label.grid() num1_inp.grid() num2_label.grid() num2_inp.grid() num3_label.grid(row=10,column=4) num3...

import tkinter as tk root = tk.Tk() root.title('BASIC CALCULATOR') root.geometry('640x480+300+300') root.resizable(False, False) title = tk.Label(  root,  text='Simple Calculator',  font=('Timesnewroman 18 bold'),  bg='green',  fg='#AB1' ) var1=tk.DoubleVar() var2=tk.DoubleVar() var1_label = tk.Label(root, text='Number1: ') var1_inp = tk.Entry(root, textvariable=var1) var2_label = tk.Label(root, text='Number: ') var2_inp = tk.Entry(root, textvariable=var2) plus_btn = tk.Button(root, text=' + ') minus_btn = tk.Button(root, text=' - ') mul_btn=tk.Button(root,text='*') divide_btn=tk.Button(root,text='/') output_var = tk.StringVar(value='') output_line = tk.Label(  root,  textvariable=output_var,  anchor='w',  justify='left' ) title.grid(columnspan=4) var1_label.grid(row=10,column=0) var1_inp.grid(row=10,column=1) var2_label.grid(row=10,column=2) var2_inp.grid(row=10,colu...

import tkinter as tk root = tk.Tk() root.title('BASIC CALCULATOR') root.geometry('640x480+300+300') root.resizable(False, False) title = tk.Label(  root,  text='Simple Calculator',  font=('Timesnewroman 18 bold'),  bg='green',  fg='#AB1' ) var1=tk.DoubleVar() var2=tk.DoubleVar() var1_label = tk.Label(root, text='Number1: ') var1_inp = tk.Entry(root, textvariable=var1) var2_label = tk.Label(root, text='Number: ') var2_inp = tk.Entry(root, textvariable=var2) plus_btn = tk.Button(root, text=' + ') minus_btn = tk.Button(root, text=' - ') mul_btn=tk.Button(root,text='*') divide_btn=tk.Button(root,text='/') output_var = tk.StringVar(value='') output_line = tk.Label(  root,  textvariable=output_var,  anchor='w',  justify='left' ) title.grid(columnspan=4) var1_label.grid(row=10,column=0) var1_inp.grid(row=10,column=1) var2_label.grid(row=10,column=2) var2_inp.grid(row=10,colu...