If it's that hot, you would sweat a lot, wouldn't you?
That kind of heat would make you sweat profusely.
この場合、次のような言い方ができますよ。
ーIf it's that hot, you would sweat a lot, wouldn't you?
「そんなに暑いなら、たくさん汗かくんじゃない?」
ーThat kind of heat would make you sweat profusely.
「そのような暑さだとものすごく汗かくでしょ」
to sweat profusely で「ものすごく汗をかく」と言えます。
ご参考まで!