Search & Filtering
A container with a volume of 14 L filled with gas at 2.00 atm at 283k. What will be the new pressure temperature increase to 321k?
Engage in critical discussion on Immanuel Kant’s thoughts on the Enlightenment and its underlying philosophies
A 300f capacitor separated by a distance of 4.0mm was charged to a potential difference of 250 V. What is the energy density in its region in terms of jouled/m³
Find the ∆E
a) When 175J of work is done on a system that evolves 50J of heat to the surrounding. b) When a gas absorbs 28kJ of heat and 13kJ of work done on it.
A system absorbs 50J of heat during a transformation. Determine the change in internal energy if the system perform, (a) 15J and (b) 65J of work on the surrounding.
Determine the Oxidation State of the highlighted element below.
H₂ PO₄-
Solution:
Given the following thermochemical equations:
1.) 4NH3(g) + 302(g) → 2N2(g) + 6H₂0(l) ∆H°-1531 kJ
2.) N₂O(g) + H₂(g) → N2(g) + H₂O (l) ∆H°-367.4 kJ
3.) H₂(g) + O2(g) → H₂0(l)
∆H°= -285.9 kJ
Find the value of ∆H° for the reaction:
2NH3(g) + 3N₂O(g) → 4N₂(g) + 3H₂0 (l)
The fundamental economic problem society is confronted with involves ___________.
a. ensuring they get what they want
b. ensuring the lowest possible satisfaction of needs with these scares resources
c. choosing how it will use its scarce resources to the maximum effect in order to satisfy its needs
d. making as much profit as possible regardless of the needs of society
What is the magnitude of the force on a charge of +2x10-7 C that is 0.3 m from a charge of -5x10-7 C?
Employment equity is the notion that _________.
a. human resources is the most important contributor to the business’ equity
b. the composition of the workforce should reflect the composition of the community
c. employment should be provided on an equitable basis to all job seekers
d. the composition of the workforce should reflect the composition of top management
