(25 points) this question includes lel, e2,e3 the following data refer for a space to be air conditioned: inside design condition: 27 cdb, 21 c wb outdoor air conditions: 8cdb, 70% rh sensible heat load: latent heat gain: the outside air is supplied at the rate of 20 m/min directly into the room ventilators and by infiltration. the outside air is mixed with return air and passed through a heating coil which of the total air recirculated from the conditioned space is 80% and mixed with the fresh air 20%. a) identify the system components and show a schematic dagram (e1] (5 pts) b) formulate the heating load calculation needed for this problem e2] (to pts) c) total heating load of the coil in kj/kg 126,000 kj/hr 50400 kj/hr e3) (10 pts)

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.