Answer:
-77870 J is the change in internal energy for the system.
Explanation:
According to the first law of thermodynamics:-
Where,
U is the internal energy
q is the heat
w is the work done
From the question,
q = + 130 J (+ sign as the heat is being absorbed)
(negative sign as work is done by the system)
So,
<u>-77870 J is the change in internal energy for the system.</u>
Answer:
Uranium-238 or lead-206 are most often used to date rocks. ... Carbon-14's half-life is much too long to use for dating rocks. C) The half life of carbon-14 is about 5700 years and is too short date rocks. D) Carbon-14 is only found in living things; it can only be used to date remains
Explanation:
hope this helps
<span>Each shell can contain only a fixed number of electrons: The first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on. The general formula is that the nth shell can in principle hold up to 2(n2) electrons.</span>
Blood<span> is a heterogeneous </span>mixture<span> cause the </span>blood<span> cells are physically separate from the </span>blood<span> plasma. :)</span>
Answer:
C stays same
Explanation:
Law of conversation of mass state that mass remain same during hating or chemical reaction