A heat engine rejects 75% of the heat supplied to the surrounding (acting as a sink) per cycle. Estimate its efficiency. A heat engine rejects 75% of the heat supplied to the surrounding (acting as a sink) per cycle. Estimate its efficiency. September 3, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related