Energy transfer is a scalar but it can be positive or negative. When energy transfer is negative the system has gained energy

you’ve made a calculation mistake.

the system is moving left.

the system has lost energy

maybe the spark is gone, love is a weird emotion and there is a possibility he may have found somebody else.

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm

the maximum mass of nh3 is nh3 in grams