Question

500 joules of heat was supplied to a systematic constant volume it resulted in the increase of temperature of the system from 20 degree Celsius to 25 degree Celsius what is it Delta u of the system​

Answer 1

Explanation:

500 joule of heat was supplied to a system at constant volume . it resulted in the increase of temperature of the system from 20° C to 25° C wbat is the change in internal energy of the system

Answer 2

$\Delta U$ of the system​ is +500 Joules

Explanation:

According to first law of thermodynamics:

$\Delta U=q+w$

$\Delta U$=Change in internal energy

q = heat absorbed or released

w = work done or by the system

w = work done by the system=$-P\Delta V=0$  {Work done is zero as the volume is constant, $\Delta V=0$ }

w = 0

q = +500J   {Heat absorbed by the system is positive}

$\Delta U=+500J+(0J)=+500J$

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