We subtract the enthalpies of the reactants from that of the products:

Since this is < 0, this is an exothermic reaction.
Answer:
205K
Explanation:
The following were obtained from the question:
n = 4moles
P = 5.6atm
V = 12L
R = 0.082atm.L/Kmol
T =?
PV = nRT
T = PV/nR
T = (5.6 x 12)/ (4 x 0.082)
T = 205K
The first option is correct. have fun in earth science i love astronomy!! :)
Answer:
The coffee has a higher temperature because a pool is so you can have fun and relax in while coffee can warm you up by drinking it.
Explanation:
Hope it helps :)