NEET UG PHYSICS MCQ: THERMODYNAMICS

1 Medium

1 of 1

Application +4 | -1

A diatomic gas

\left( {\gamma \mathrm{ } = \mathrm{ }1.4} \right)

does 60 J of work when it is expanded isobarically. The heat given to gas in the process is

View answer and explanation

Correct option: A

210 J

Option A (210 J) is correct because the heat given to the gas is calculated using the relationship between work done and heat in an isobaric process for a diatomic gas.

More Questions from THERMODYNAMICS

Practice All Chapter MCQs →

The work done during expansion of a gas is independent of pressure if the expansion takes place When heat is added to a system, which of the following is not possible? The

p-T

relation for an adiabatic expansion is
A Carnot engine has efficiency

\frac{1}{4}

. Efficiency becomes

\frac{1}{3}

when temperature of sink is decreased by 50 K (keeping source fixed). What is the original temperature of the sink? If sink and source temperature of a refrigerator are

4^{\circ} \mathrm{C}

and

15^{\circ} \mathrm{C}

respectively. Then efficiency of refrigerator is The

SI

unit of mechanical equivalent of heat is