High School

The pressure of a basketball is 412 mmHg. How many kPa is that equal to?

A. 313,000 kPa
B. 0.117 kPa
C. 0.542 kPa
D. 54.9 kPa

Answer :

Answer:

d. 54.9 kPa

Explanation:

mmHg and Pa are units of pressure used in chemistry principally in the study of gases. 1mmHg is equal to 133.322Pa. 412mmHg are:

412 mmHg * (133.322Pa / 1mmHg) = 54929 Pa

The prefix K (Kilo) represents one thousand of the determined unit.

54929Pa are:

54929Pa * (1KPa / 1000Pa) = 54.9kPa

Right answer is:

d. 54.9 kPa

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