Determine the value of Kc at 1000˚C for the equilibrium below:
C(s) + 2H2(g) ↔ CH4(g) Kp = 0.262 at 1000˚C
a) 2.18 x 103
b) 2.86 x 103
c) 2.40 x 10-5
d) 2.51 x 10-3
e) 27.4
Can someone help me with this chemistry problem?
2018-03-06 7:50 pm
回答 (3)
2018-03-06 9:33 pm
C(s) + 2H₂(g) ⇌ CH₄(g)
For the above heterogeneous equilibrium, C(s) is not shown in the equilibrium law.
Kc
= [CH₄] / [H₂]²
= {P(CH₄)/RT} / {P(H₂)/RT}²
= {P(CH₄) / P(H₂)²} × (1/RT)²
= Kp / (RT)²
= 0.262 / (0.08206 × 1273)²
= 2.40 × 10⁻⁵
The answer: c) 2.40 × 10⁻⁵
For the above heterogeneous equilibrium, C(s) is not shown in the equilibrium law.
Kc
= [CH₄] / [H₂]²
= {P(CH₄)/RT} / {P(H₂)/RT}²
= {P(CH₄) / P(H₂)²} × (1/RT)²
= Kp / (RT)²
= 0.262 / (0.08206 × 1273)²
= 2.40 × 10⁻⁵
The answer: c) 2.40 × 10⁻⁵
2018-03-06 8:07 pm
d) 2.51 x 10^-3
2018-03-06 8:22 pm
This is too hard for me.
收錄日期: 2021-05-01 14:15:07
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