Molecular Physics | Thermodynamics Answers

A 800N man is playing on a seesaw with son who has a weight of 200N. If the child is sitting 3 meters away, how far will the man have to sit to balance the seesaw?

In the compression stroke of a gas engine the work done on the gas by the piston is 70 kJ/kg and the heat rejected to the cooling water is 42 kJ/kg.
Estimate the change of specific internal energy stating whether it is a gain or a loss.

Explain degree of freedom

What is cop of carnot engine

What heat capacity

What is efficiency of carnot engine.

What is entropy make notes.

Two cylinders A and B of equal capacity are connected to each other via a stopcock. Cylinder A contains an ideal gas at standard pressure P . The cylinder A&B are in thermal contact with a reservoir at temperature T. The stopcock is suddenly opened. After the gas reaches equilibrium the pressure P' is related to the original pressure P by
Ans:P'=P

Calculate the temperature, specific volume, internal energy and enthalpy for dry saturated vapor at a pressure of 1.9MPa, if steam is dry saturated vapor.
Steam with dryness fraction of 0.8
Steam is superheated with temperature of 450°C

x^x + y^y = 3
x + y = 5

Find the value of x and y