Question

Samples of three gases, CH4 (9), Ar (9) and N2 (9) at STP are placed in three 1.00 L containers. The same amount of heat is added to all three samples. Match the final temperatures of the samples with the proper gas 290.72 K 297.79 K 287.49 K Submit Answer Tries 0/99 $ Match the molar heat capacities with the proper gas. 35.6 J/mol K 29.1 J/mol K 20.8 J/mol K Submit Answer Tries 0/99 Based on this information, determine how much heat was added to the systems. q- Submit Answer Tries 0/99

Answer 1

q = nCAT Where q= Heat adderd na no. of moles of gas c= molar heat (opacity 47 = change in temperature At Stp na is same for all three gas. T= 273.15% . so, CAT = 2 - so higher 'C' will be lower rise in temperature Arx mono atomic Na s diatomic - CHU > pentatomic need more heat to increase the feroperature 287.49 —CHY 290.72 x N2 297.79 > Ar

Heat capacity ir 20.8 Ilmolk --> 29.1 Il molk -> N2 35.6 J] molk ->. Chay Heat added to sach system (using di =NCAT = (22.4) (29.1) (290.72 - 243-15) = (0.044) (291) (14.57) = 22:49 J 19 = 22.495