Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Anshum Sharma
The formula you will use to find the energy is Q=mc∆t. where: c= 4186J/kg° C m= 2 kg ∆t= 20°C - (-12)°C= 32°C Now just substitute in the values; Q=mc∆t. Q = (2 kg) (4186J/kg° C) (32°C) Q=267904 J. Q = 2.6 * 10 ^5(This much energy has been removed)
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