Final answer:
To convert 22 °C to Kelvin, add 273 to the Celsius temperature, which results in 295 K. The Kelvin scale does not use degrees, so the correct notation is 'K' not '°K'.
Step-by-step explanation:
To convert 22 °C to Kelvin (K), we use the conversion formula TK = T°c + 273.15. However, for most purposes, it is acceptable to use 273 instead of 273.15 for simplicity. Therefore:
K = 22°C + 273
= 295 K
It's important to note that the Kelvin scale does not use the term degrees, so the correct expression is 295 K, not 295 °K. So, the correct answer is (a) 295 K.