Question

Convert the following temperatures to Kelvin Scale:

(a) 20°C; (b) 85°C; (c) -15°C; (d) -190°C; (e) 0°C.

A) (a) 293K; (b) 358K; (c) 258K; (d) 83K; (e) 273K
B) (a) 293K; (b) 358K; (c) 258K; (d) 83K; (e) 0K
C) (a) 293K; (b) 458K; (c) 258K; (d) 83K; (e) 273K
D) (a) 273K; (b) 358K; (c) 258K; (d) 83K; (e) 293K

Answer 1

When converting temperatures from Celsius to Kelvin, add 273.15, or approximately 273 for simplicity in schoolwork, to the Celsius temperature. The conversion of the given temperatures results in 293K, 358K, 258K, 83K, and 273K respectively.

Step-by-step explanation:

To convert temperatures from Celsius to Kelvin, you need to use the following formula: Temperature in Kelvin (K) = Temperature in Celsius (°C) + 273.15. However, in most cases, using 273 for conversion is sufficiently accurate for schoolwork. Let's do the calculations for each given temperature:

• (a) 20°C to Kelvin: K = 20 + 273 = 293K
• (b) 85°C to Kelvin: K = 85 + 273 = 358K
• (c) -15°C to Kelvin: K = -15 + 273 = 258K
• (d) -190°C to Kelvin: K = -190 + 273 = 83K
• (e) 0°C to Kelvin: K = 0 + 273 = 273K

Considering these calculations, the correct option listing all the conversions accurately is:

A) (a) 293K; (b) 358K; (c) 258K; (d) 83K; (e) 273K