Answer:
(d) has an extremely large equilibrium constant.
Step-by-step explanation:
Hello,
Considering a generic chemical reaction:
![aA+bB <--> cC+dD](https://img.qammunity.org/2020/formulas/chemistry/college/ke8q8sj98y41llocq3w79qvk4pfc34qxip.png)
The equilibrium constant is defined as:
![K=([C]^c_(eq)[D]^d_(eq))/([A]^a_(eq)[B]^b_(eq)) \\](https://img.qammunity.org/2020/formulas/chemistry/college/q79ts8qtgev9jnescybu6x2kafb883ulhi.png)
Now, an irreversible chemical reaction is a reaction in which the reagents are converted into products with no chance of coming back, so, considering the previous chemical reaction, the concentration of both A and B tends to be zero, so an extremely large equilibrium constant is gotten.
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