Question

Q15 of total 25 questions Wol
015
Two blocks at different temperatures were kept in contact with each other Were are their temperatures re
at intervals of 10 seconds
alaimalgesHSBாப்பம்
Block 1 Block 2
o seconds 145 °C
45 °C 15 °C
10 seconds 35 C 25 °C
20 seconds 32 °C 28 °C
30 seconds 30 °C 30 °C
40 seconds
50 seconds
oup
DOSE
Vojisi
What will be their temperatures measured after 60 seconds?
worer The room temperatures​

Answer 1

Answer:

When two blocks are kept in contact with each other, the final temperature will be given as:

Tf=2T1+T2

Now, we have ΔSsys=∫Tdqrev=nCp∫TdT

For the first block of metal the entropy will be given as:

ΔS1=nCp∫T1TfTdT=nCplnT1Tf

Similarily, ΔS2=nCplnT2Tf

Now, total change in entropy

ΔS1+ΔS2=nCpT1T2Tf

please give thanks and follow if you feel right are right

Answer 2

u r kashmiri...if I am correct