JEE PHYSICS MCQ: THERMODYNAMICS

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An electric immersion heater of 1.08 kW is immersed in water. After the water has reached a temperature of

{100^0}C

, how much time will be required to produce 100 g of steam

View answer and explanation

Correct option: A

210 s

Option A (210 s) is correct because it calculates the time required to produce steam using the power of the heater and the latent heat of vaporization.

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The work done in which of the following process is zero? Water is used to cool the radiators of engines in cars because A gas expand

0.25\,\,{m^3}

at constant pressure

{10^3}N/{m^2},

the work done is A thermodynamic process in which temperature

T

of the system remains constant though other variable

P

and

V

may change, is called What is the slope for an isothermal process? For adiabatic processes

\left( {\gamma = \frac{{{C_p}}}{{{C_v}}}} \right)