NEET UG PHYSICS MCQ: THERMODYNAMICS

1 Medium

1 of 1

Understanding +4 | -1

It is difficult to cook rice in an open vessel by boiling it a high altitudes because of

View answer and explanation

Correct option: C

Low boiling point and low pressure

Option C (Low boiling point and low pressure) is correct because at high altitudes, the atmospheric pressure is lower, which reduces the boiling point of water, making it difficult to cook rice.

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