Question

Joules are Nm, which is kg middot m^2/s^2 Use this relationship and 1 Btu = 1.0551 kJ to determine what Btu using primary English units (ft, lb_m, degree F, sec, etc.)

Answer 1

Answer:

$23851.35840\ lbft^2/s^2$

Explanation:

$1\ Btu=1.0051\ kJ\\\Rightarrow 1\ Btu=1.0051\times 1000 kgm^2/s^2$

The English units that are to be used here are pounds (lb) and feet (ft)

$1\ kg=2.20462\ lb$

$1\ m=3.28084\ ft$

$1005.1\times 2.20462\times 3.28084^2=23851.35840\ lbft^2/s^2$

The answer is $1\ Btu=23851.35840\ lbft^2/s^2$