Final answer:
Promissory estoppel can make a difference in the law of offer b.)when an offer is unenforceable due to lack of consideration. In this situation, promissory estoppel allows the offer to be upheld and enforced by the court.
Step-by-step explanation:
Promissory estoppel is a legal doctrine that can make a difference in the law of offer in situations where an offer is unenforceable due to lack of consideration. When there is no exchange of something of value between the parties involved, an offer may be considered unenforceable. However, promissory estoppel allows for an exception to this rule.
For example, let's say that Party A promises to give Party B a gift, and in reliance on this promise, Party B incurs expenses or relies on the promise in some substantial way. If Party A then attempts to revoke the offer, the doctrine of promissory estoppel can prevent Party A from doing so. This is because Party B has relied on the promise to their detriment, and it would be unfair to allow Party A to back out.
Therefore, in situations where an offer is unenforceable due to lack of consideration but promissory estoppel applies, the offer may still be upheld and enforced by the court.