Equilibrium equation: SCl2(g) + 2C2H4(g) ⇌ S(CH2CH2Cl)2(g)
When dealing with equilibrium:
• Kc → equilibrium units are in molarity
• Kp → equilibrium units in terms of pressure
Kc is an equilibrium expression:
Kp and Kc are related:
At equilibrium: [S(CH2CH2Cl)2] = x = 0.350 M
Kc = 14.45
A toxicologist studying mustard gas, S(CH2CH2Cl)2, a blistering agent, prepares a mixture of 0.675 M SCl2 and 0.973 M C2H4 and allows it to react at room temperature (20.0°C):
SCl2(g) + 2C2H4(g) ⇌ S(CH2CH2Cl)2(g)
At equilibrium, [S(CH2CH2Cl)2] = 0.350 M. Calculate Kp.
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Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition practice problems.