balance each reaction and write its reaction quotient CH4(g) + F2(g)-----CF4(g) +HF(g)

Answer 1

CH4(g) + 4F2(g)-----CF4(g) + 4HF(g)
Qc = (CF4)(HF)^4/(CH4)(F2)^4
I chose to write the concentration quotient. There is a pressure quotient.
Qp = same as Qc BUT instead of concentration in moles/L use pressure in atmospheres. It's harder to write this one without subscripts and superscripts.
Qp = pCF4*p^4HF/pCH4*p^4F2