Everything requires energy to move. If the desk is moving, then it has energy.
Answer:
Explanation:
M(s) → M (g ) + 20.1 kJ --- ( 1 )
X₂ ( g ) → 2X (g ) + 327.3 kJ ---- ( 2 )
M( s) + 2 X₂(g) → M X₄ (g ) - 98.7 kJ ----- ( 3 )
( 3 ) - 2 x ( 2 ) - ( 1 )
M( s) + 2 X₂(g) - 2 X₂ ( g ) - M(s) → M X₄ (g ) - 98.7 kJ - 2 [ 2X (g ) + 327.3 kJ ] - M (g ) - 20.1 kJ
0 = M X₄ (g ) - 4 X (g ) - M (g ) - 773.4 kJ
4 X (g ) + M (g ) = M X₄ (g ) - 773.4kJ
heat of formation of M X₄ (g ) is - 773.4 kJ
Bond energy of one M - X bond = 773.4 / 4 = 193.4 kJ / mole
B seems like the correct answer stay safe!
Answer:
2 P2 (1.2 atm =157 one. 8. A gas with a volume of 4.0 L
Explanation:
Answer:
<h2>13</h2>
Explanation:
<em>b</em><em>e</em><em> </em><em>c</em><em>r</em><em>i</em><em>t</em><em>i</em><em>c</em><em>a</em><em>l</em><em> </em><em>t</em><em>h</em><em>i</em><em>n</em><em>k</em><em>e</em><em>r</em><em>s</em>
