Which of the following temperatures (in c) is equivalent to 312k

well, K = C + 273.15

To convert from Kelvin (K) to Celsius (°C), you need to subtract 273.15 from the given temperature in Kelvin.

Therefore, to find the equivalent temperature in °C for 312K:

312K - 273.15 = 38.85°C

So, 312K is equivalent to 38.85°C.