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I do 400J of work compressing a gas, but I maintain the same temperature. What is the delta U, Q and W in this case?

U = 0Q = -400W = -400
HC
Answered by Helen C. • Physics tutor
2704 Views

Outline the problem of evil and one possible response to it.

The problem of evil is one that is often thought to come in two forms - the logical and the evidential - both of which arrived at due to the Christian devotion to the idea of a God of all perfections (i.e. a...
TH
4898 Views

What is the male role in Federico Garcia Lorca's play, 'La Casa de Bernarda Alba'?

Possible answers: The fact that male characters never appear on stage is perhaps reflective of the social context whereby despite their absence, they maintain a certain superiority and power over the female ...
CB
Answered by Claire B. • Spanish tutor
12704 Views

What is the difference between the 'passé composé' and 'imparfait' tenses?

While both tenses are used to talk about actions that have taken place in the past. The passé composé and imparfait tenses are distinct. The best way to distinguish them is to consider whether or not the act...
KC
Answered by Kaeshelle C. • French tutor
2189 Views

How can I remember when a turning point of a function is a maximum or a minimum?

The key is to look at the first and second derivatives of that function. Remember that a turning point always has the first derivative equal to zero. Then, the sign of the second derivative indicates if that...
TD
Answered by Titus D. • Maths tutor
8481 Views