[填空题]
One and one-half moles of an ideal monatomic gah nhgzieqk*)q -jja*(8 4 nx-fn epr k:qmh9egbw5)st; 7/co:s expand adiabatically, performing 7500 J of work in the process. What is the change in temperature of the gas during this exp9:7; c5 bnw hk: rt/moqg)speeansion? $ K$
